Glomerular changes in the KK-Ay/Ta mouse: a possible model for human type 2 diabetic nephropathy

Nephrology
Takamichi ItoYasuhiko Tomino

Abstract

In type 2 diabetic nephropathy, there is no animal model which has been completely matched with humans. Advanced glycation end products (AGE) and transforming growth factor-beta (TGF-beta) are closely related to hyperglycaemia and their pathobiochemistry could explain diabetic nephropathy. The objective of the present study was to evaluate the KK-A(y)/Ta mouse as a suitable model for type 2 diabetic nephropathy including pathological changes and immunohistochemical analyses of AGE and TGF-beta, compared with the non-diabetic BALB/cA mouse. The urinary albumin/creatinine ratio (ACR), body weight (BW), fasting and casual blood glucose, blood haemoglobin A(1c) (HbA(1c)), creatinine clearance (Ccr) and blood pressure were measured for phenotypic characterisation. The pathological changes of glomeruli were evaluated by light microscopy, immunofluorescence and electron microscopy. AGE and TGF-beta accumulation were evaluated by immunoperoxidase staining. The mean levels of ACR, casual blood glucose, blood HbA(1c) and Ccr in KK-A(y)/Ta mice were higher than those in age-matched non-diabetic BALB/cA mice after 12 weeks of age. There were no significant changes in the levels of systemic blood pressure among all groups. The pathological ...Continue Reading

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Citations

Feb 28, 2013·Cell Biochemistry and Biophysics·Jinyang WangXuan Zhao
Mar 8, 2014·Nephron. Experimental Nephrology·Shigetaka YoshidaMiki Nagase
May 28, 2013·Journal of Diabetes Research·Stephen P O'BrienStefan Wawersik
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